SQLSTATE[HY000] [2002] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

It occurs several issue. please check below:

  1.  Please check your DB. Is it up or not.
  2. Please check your net connection.
  3. Error show due to script can not reach DB within time.

it seems that your code this portion is not working

[general]
db.adapter = PDO_MYSQL
db.params.host = 192.168.0.233
db.params.username = root
db.params.password = my_password
db.params.dbname = “mydatabasename”

either the IP is not correct if so go to cmd in windows and type ipconfig you will get your correct ip paste it here OR just simply write
db.params.host = localhost
if and only if you are using locally may be it works.